﻿using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using System.Windows.Data;
using System.Windows.Media.Imaging;
using System.IO.IsolatedStorage;
using System.IO;

namespace ThuPhap.Converter
{
    public class CenterAreaImageFromStreamConverter : IValueConverter
    {

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            if (value != null && value is string)
            {
                string url = value as string;
                using (IsolatedStorageFile myIsolatedStorage = IsolatedStorageFile.GetUserStoreForApplication())
                {
                    using (IsolatedStorageFileStream fileStream = myIsolatedStorage.OpenFile(url, FileMode.Open, FileAccess.Read))
                    {
                        WriteableBitmap writeableBitmap = new WriteableBitmap(0, 0).FromStream(fileStream);
                        var result = writeableBitmap.Crop(0, (writeableBitmap.PixelHeight - writeableBitmap.PixelWidth) / 2, writeableBitmap.PixelWidth, writeableBitmap.PixelWidth);
                        fileStream.Close();
                        return result;
                    }
                }

            }
            return null;
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }
    }
}
